BS EN ISO 3146:2022
Plastics. Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
- Standard No.
- BS EN ISO 3146:2022
- Release Date
- 2022
- Published By
- British Standards Institution (BSI)
- Latest
- BS EN ISO 3146:2022
- Scope
- 1 Scope This document specifies two methods for evaluating the melting behaviour of semi-crystalline polymers. a) Method A: Capillary tube This method is based on the changes in shape of the polymer. It is applicable to all semi-crystalline polymers and their compounds. NOTE 1 Method A can also be useful for the evaluation of the softening of non-crystalline solids. b) Method B: Polarizing microscope This method is based on changes in the optical properties of the polymer. It is applicable to polymers containing a birefringent crystalline phase. It might not be suitable for plastics compounds containing pigments and/or other additives which can interfere with the birefringence of the polymeric crystalline zone. NOTE 2 Another method applicable to semi-crystalline polymers is described in ISO 11357‑3.
BS EN ISO 3146:2022 Referenced Document
- ISO 291 Plastics - Standard atmospheres for conditioning and testing
- ISO 472 Plastics — Vocabulary — Amendment 1: Additional items
BS EN ISO 3146:2022 history
- 2022 BS EN ISO 3146:2022 Plastics. Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
- 2000 BS EN ISO 3146:2000 Plastics - Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
